BUILDING THE BIGGEST ROCKET
The Artemis program seeks to carry humans farther than any other space mission in history. In order to do that, NASA is building the world’s biggest and most powerful rocket, called the Space Launch System (SLS). The core stage, shown in this image, is the largest part of the rocket. Here it’s seen being lowered onto the mobile launcher inside High Bay 3 of the Assembly Building at NASA’s Kennedy Space Center in Florida. Towering almost 61 metres tall, the core stage will house the rocket’s storage tanks, which will hold 3.3 million litres of supercooled liquid hydrogen and liquid oxygen fuel to power its four RS-25 engines.